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July 1997

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Wed, 16 Jul 1997 10:05:44 -0700
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>From willli Wed Jul 16 11:
49:40 1997
From [log in to unmask] Mon Jul 21 11:
22:40 1997
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Joseph Fjelstad <[log in to unmask]>, Bogdan Gaby <[log in to unmask]>
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     There is a machine we use that does an excellent job of decapping:
     
     The machine uses a mixture of Nitric acid and Sulfuric acid with a 
     timed water rinse to decap.
     
     B&G Decapsulator 
     Model 250
     
     B&G Enterprises, Inc.
     2880 Research Park Drive, Suite 100
     Soquel, CA 95073
     
     408-464-6540
     
     We use it in a lower volume lab environment, but I believe B&G has 
     higher throughput machines as well.  
     
     Frank Hinojos
     Watkins-Johnson Co.


______________________________ Reply Separator _________________________________
Subject: Re: Decapping ICs
Author:  Bogdan Gaby <[log in to unmask]> at INTERNET
Date:    7/16/97 9:31 AM


Joseph Fjelstad wrote:
> 
> Hi folks!
> 
> Does anyone have a favorite formula for removing the molded plastic from 
> around the IC and lead frame for failure analysis?
> 
> Thanks in advance to all who reply... 
> 
> Best to all,
> J. Fjelstad
> ************************************************************************* 
>     _/_/_/_/  /__  __/ / ____/ / ___/ / ___/  / ___/  / __  /    / \
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>  _/_/_/_/     /_/   /_____/  /____/ /____/ /_____/ /_/   \_\  /_/   \_\ 
> 
>  ...System Building Blocks for the Next Generation of Electronics 
> 
>  3099 Orchard Drive
>  San Jose, CA 95134
>  Phone 408 894-0700
>  Fax   408 894-0768
> 
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Hi,Joseph!
     
3 decapsulation methods are known to me ,which work well depending 
on your appliccation.
1."Automatic" decapsulation ,done with the decapsulators from 
B&G Enterprises,Inc.
2880 Research Park Drive,Suite 100
Soquel,CA 95073
408.464.6540
Fax 408.464.6549
They have several models for almost all types of packaging. 
I have no experience with their product.
2.Nitric acid , manually.This is ART and needs some experience. 
3.Dipping in adequate solvents from
Dynaloy,Inc.
7 Great Meadow Lane
Hanover N.J.07936
(201)887-9270
This is done also manually,and Dynaloy has a booklet on the subject. 
Good luck!
GABY
     
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